turned compt on and found i could not get into anything message on screen was to reinsert windows c/d this is vista home premium and enter language then press next so having done this restarted compt but still came back to original message a critical loss of driver or software problem to do as sugested before done this again no good set compt to do a test no problems found and compt should have restarted but this did not happen either so using old machine to send this message hopeing i may gat some help from someone out there ... thanks RICHARD